Same issue here in TX. I try to park way out and walk when my lower back isn't giving me hell. Sadly, the damn cold weather isn't helping me.
I find when i park the Trike/Bike just a few rows or more from the entrance of a store it kinda gets lost out there, And you will find someone will park a little over the line figuring your small you can get out....Or worst yet put a shopping cart in your space, so you have to move it to get out....I have a strong suspicion thats done on spite....IE; You shound't be taken a space where my car can go...