I was actually thinking about just asking for a tour or if I can join a tour.
I haven't heard of any med schools that allow tours by students who are not being interviewed, so your request would most likely be denied.
Besides, let's be realistic: at this stage, you don't need tours, you need INTERVIEWS. It's getting to the end of the season for interview invites; according to
LizzyM--an adcom who posts here--and specific statements from some schools I've applied to, most invites are issued by the middle of February. So you need to do something quickly if you want to help your chances of getting an interview, and I frankly think that an "in the area" email would be a bit too timid.
I have some experience with this, because I'm also a nontrad with problematic stats (worse than yours, actually). Realizing how bad my chances were going to be unless I did something a little out of the ordinary, I emailed letters of interest to EVERY SINGLE SCHOOL where I applied, as soon as my app was complete, stating my strong interest in each school, my strengths as an applicant, and why I thought I was a fit for that school. (BTW, I also briefly mentioned and addressed what I knew they'd see as my weakness: the numbers.) I concluded my emails by directly asking for an interview. I have 4 interviews so far (3 of them at state schools where I am OOS), and it's possible that I might receive other invites before the season is done.
Desperate times call for desperate measures. Get out there and DO IT, and good luck.