Ok, my mom's car had the TPMS warning light on so she went in and the guy said she had a little nail in her tire. They plugged it or patched it (not sure which). This morning she went out to get in the car and the light came back on. She is supposed to be taking a 630 mile trip today. What should she do? Should she get a new tire? Just fill all the tires with air? Is that plug/patch safe over that kind of distance?