No, just inform them that you're "not well enough to work [safely] today" and be sure it's 60+ minutes before the start of your shift. Throw the word "safely" in there if they are being difficult.
Each late and absence adds up, but if you're sick for tues-friday, it only counts as one "occurrence". Just be sure you get one time-card punch per week to keep your health insurance. In our local, there's 4 weeks to fix any non-punch medical insurance

ups. So if they forget to code you for sick time or PTO, you can go after them, and there's time to fix it before medical bills go to collections. (Of course, never acknowledge a debt that isn't yours by default).
Stay the friend home, people who come to work sick infuriate the

out of me. Do not let UPS bully you over your health.