Miata Valentine's

It's still cold and rainy in Vancouver and just a little while ago it snowed. But I can see the light at the end of the tunnel as we reach mid point of February. This means it's Valentine's day, what do you give the car that has everything; a blow of course, a blow of air that is; into the tires. Air escapes even as the car is sitting still so I had to pump up the tires. I pumped them up to almost the maximum recommended pressure (40psi) as this will ensure a flat spot doesn't develop where the tire meets the road. I also undid the handbrake because I read that it can be bad for the callipers to be engaged for such a long time, my garage floor is flat so the car won't roll away anywhere (I hope).